Race once with the Harken Windward Sheeting Traveler Car and you'll never race without one again. Pull the car above the centerline without releasing the leeward control line. Tack, and the car stays in the same position, ready to be pulled to the new windward side. Harken Cars are one-piece solid aluminum construction with captive balls. Mount track in the cockpit or near deck level. For dinghies to large offshore boats.